OK. Thanks again. On Wed, Feb 17, 2010 at 5:09 AM, Ikai L (Google) <[email protected]> wrote:
> No, there is no real concept of structure. The closest thing to structure > would be the indexes on the values of the data stored. You can read more > about this here: > > http://code.google.com/appengine/articles/storage_breakdown.html > > On Sat, Feb 13, 2010 at 11:16 PM, kang <[email protected]> wrote: > >> OK. Thanks for you reply. So it's hard to change the datastore structure >> in GAE? >> >> >> On Sat, Feb 13, 2010 at 1:50 AM, Ikai L (Google) <[email protected]>wrote: >> >>> Unfortunately, we don't have mass deletion capability yet. The datastore >>> isn't like a relational database where we can just drop a table. Entities >>> are schemaless and are indexed, so a mass deletion would need to traverse >>> the EntitiesByKind index: >>> >>> >>> http://code.google.com/appengine/articles/storage_breakdown.html#anc-entitiestable >>> >>> >>> <http://code.google.com/appengine/articles/storage_breakdown.html#anc-entitiestable>At >>> some point, we may offer a delete better tools for managing a mass delete, >>> though it would likely be implemented on top of our Task Queue >>> infrastructure since it wouldn't be a trivial operation. Can you add/find >>> the issue in our issues tracker and star it? >>> >>> http://code.google.com/p/googleappengine/issues >>> >>> >>> On Fri, Feb 12, 2010 at 6:49 AM, lookon <[email protected]> wrote: >>> >>>> My total datastore has been reached 77% and I'd like to clear some old >>>> data. How can I remove a whole Model in GAE? And how can I delete huge >>>> amount of data? >>>> >>>> I'm now using the task queue to delete. Wish someone can give me some >>>> better way. Thanks. >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Google App Engine" group. >>>> To post to this group, send email to [email protected]. >>>> To unsubscribe from this group, send email to >>>> [email protected]<google-appengine%[email protected]> >>>> . >>>> For more options, visit this group at >>>> http://groups.google.com/group/google-appengine?hl=en. >>>> >>>> >>> >>> >>> -- >>> Ikai Lan >>> Developer Programs Engineer, Google App Engine >>> http://googleappengine.blogspot.com | http://twitter.com/app_engine >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Google App Engine" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]<google-appengine%[email protected]> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/google-appengine?hl=en. >>> >> >> >> >> -- >> Stay hungry,Stay foolish. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google App Engine" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<google-appengine%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/google-appengine?hl=en. >> > > > > -- > Ikai Lan > Developer Programs Engineer, Google App Engine > http://googleappengine.blogspot.com | http://twitter.com/app_engine > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > -- Stay hungry,Stay foolish. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
